Well, it's all together and after running it up and down 100 times empty and then with my truck on it I finally worked up the nerve to get under it. It's wonderful to be able to stand up (I'm 6-1) and work under a vehicle, in my own garage.
As for the Advantage lift, I'm very pleased with this unit. I bought the 9000XLT just to have the extra height and length. With my truck on it there is zero movement. I tried shaking it and it still didn't move. The build quality is good (Chinese mid to upper quality I'd say) Welds are functional, but not pretty. Assembly was very easy. The videos Tony Weber has put together are excellent and walk you through every aspect of unpacking and assembly through final adjustments. The videos are older and you'll find that there are some updated parts that aren't covered well in the video, but it's all pretty straight forward and nothing will confuse you. I'd say I have 4 hours total in this with 2 helpers assisting with the heavy pieces. I spent a lot of time adjusting the runway height so the locks all fire together, but even that is very simple.
Paint is good quality (colors match my Handy motorcycle lifts) with few runs and no areas not covered. The hardware kit was missing one piece...a split lock washer for one of the runway bolts.
The power unit seems to be of good quality. The motor is quiet, the release valve works easily even with pressure built up against it. What more is there to say about that?
The wheel kit seems to work well. Once on the wheels, one person can easily move this around on a smooth floor.
The aluminum ramps are easy to use, lightweight and look pretty trick. No matter what lift you buy, get aluminum ramps.
The ramp width could be a bit wider, imo, but all our vehicles fit without issue. When I talked to Tony about larger vehicles, he suggested that some have simply drilled 2 a new hole for one or both ramps to allow them to be placed further apart. Seems easy enough, but not necessary for me.
The 2 manual, rolling jacks work very easily. It took very little effort to raise the rear wheels of my truck off the runways 3" or so. I'm glad I didn't spend the extra for the air over hydraulic jacks.
All in all, I can easily recommend the Advantage 4 post lift. My experience has been good from pre-sales through delivery and assembly.
Let me know if you have any questions and I'll be happy to try to answer them.